#define _CRT_SECURE_NO_WARNINGS 520
#include<stdio.h>
int main()
{
	int arr1[15] = { 0 };
	int arr2[15] = { 0 };
	for (int i = 0; i < 10; i++)
	{
		scanf("%d", &arr1[i]);
	}

	for (int i = 0; i < 10; i++)
	{
		scanf("%d", &arr2[i]);
	}

	for (int i = 0; i < 10; i++)
	{
		int temp = arr1[i];
		arr1[i] = arr2[i];
		arr2[i] = temp;
	}

	for (int i = 0; i < 10; i++)
	{
		printf("%d ", arr1[i]);
	}

	printf("\n");
	for (int i = 0; i < 10; i++)
	{
		printf("%d ", arr2[i]);
	}
	return 0;
}